Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Question
Chapter 9, Problem 37E
Interpretation Introduction
Interpretation:
Each of the given conversions is to be performed.
Concept introduction:
Temperature is defined as the measure of hotness and coldness of something.
The formula used to convert
Unit conversion is defined as the process in which multiple steps are used to convert the unit of measurement for the same given quantity. It is determined by multiplication with a conversion factor.
The fraction in which numerator and denominator are the same quantities but are determined in different units, is known as a conversion factor.
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Part B: Heating Curve for Water
Volume of water:
100.0mL
B1. Data table for heating curve for water
Time Temperature Time Temperature Time | Temperature
("C)
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("C)
(min)
(min)
(°C)
21
95
1
23
26
12
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96
98
98
99
99
99
99
99
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34
42
56
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15
5
16
17
67
73
26
18
8.
19
9.
20
100
10
93
21
100
2)
4)
How many grams of water at 30 degrees celcius must be mixed with 50 grams of water with temperature of 80 degrees celcius to have a final temperature of 50 celcius degree?
a. 40
b. 50
c. 60
d. 70
e. 75
f. 80
g. 85
Which is a correct statement about heat and temperature?
A. O Heat and temperature are both forms of energy.
B. O 100g of water at 20 °C contains the same amount of energy as 200 g of water at 20 °C.
C. O Heat and temperature are both a measure of the kinetic energy of the particles.
D. O
When 1.0 kg of water cools from 27 °C to 26 °C it gives out 4.2 kJ of heat.
Which statements are correct about temperature?
I. A rise in temperature of 1.0 °C is the same as a rise in temperațure of 1.0 K.
II. Both the degrees Celsius scale and the Kelvin scale are based on the temperature at which pure water melts and boils.
III. Pure water boils at 100 °C and 373 K at 100 kPa (1 atmosphere) pressure.
A. O Il and III
В.
I and II only
С. О
I, Il and III
D. O
I and II only
Chapter 9 Solutions
Chemistry In Focus
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